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Finding the Third Proportional to 8,170 and 17,905

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Solution

The third proportional to 8,170 and 17,905 is: 39,239.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170 : 17,905 = 17,905 : x
  2. Step 2: Convert to fraction form
    8,170/17,905 = 17,905/x
  3. Step 3: Cross multiply
    8,170x = 17,905 × 17,905
  4. Step 4: Simplify right side
    8,170x = 320,589,025
  5. Step 5: Solve for x
    x = 320,589,025/8,170
  6. Step 6: Final answer
    x = 39,239.78

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.